Finding the Third Proportional to 91,800 and 140,416.50

Step by Step Solution

1. Step 1: Write the proportion equation
   91,800 : 140,416.50 = 140,416.50 : x
2. Step 2: Convert to fraction form
   91,800/140,416.50 = 140,416.50/x
3. Step 3: Cross multiply
   91,800x = 140,416.50 × 140,416.50
4. Step 4: Simplify right side
   91,800x = 19,716,793,472.25
5. Step 5: Solve for x
   x = 19,716,793,472.25/91,800
6. Step 6: Final answer
   x = 214,779.89